Roller skate



July 18, 1939. H. PETERMANN ROLLER SKATE Filed Aug. 4, 1938 @mgmmmmmmmmm INVENTOR HEN/a/ PE 7%/ ATTORNEYS Patented July 18, 1939 ROLLER SKATE Henri Petermann, Tavannes, Switzerland, as-

signor of one-half to Paul Mathez, Woodside,

Long Island, N. Y.

Application August 4, 1938, Serial No. 222,982

2 Claims.

The present invention relates to roller skates.

An object of the present invention is the provision of roller skates which will make it possible for the user to move very swiftly and gracefully and to make sharp turns with great ease.

Another object of the present invention is the provision of roller skates, the functioning of which approaches that of ice skates, so that vthe person using such roller skates vcan make the 1o same turns and movements and describe the same iigures as an ice skater.

The above and other objects of the present invention may be realized through the provision of roller skates the rollers of which are situated in l5 pairs on both sides of an elongated foot support, one pair behind the other, the bearing surfaces of the rollers being preferably semi-spherical in form. The rollers comprise outer supporting bodies connected with inner rings which are supported by ball bearings mounted upon the central axes of the rollers. Suitably bent covers are used for maintaining the balls of the ball bearings in their proper positions.

The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawing, showing by way of example a preferred embodiment of the inventive idea.

In the drawing:

Figure 1 is a top view of a roller skate;

Figure 2 shows the roller skate in side elevation;

Figure 3 is a section along the line 3-3 of Figure 2, on a larger scale;

Figure 4 is a section along the line 4-4 of Figure l, on a larger scale; and

Figure 5 is a section along the line 5 5 of Figure 4, looking in the direction of the arrows.

The roller skate shown in the drawing comprises a foot support consisting of an elongated blade 6 provided with a front flange 1 and an intermediate flange 8 which carry the sole support 9. Two rear flanges I0 and II carry the heel support I2.

Rivets I3 and I4 firmly connect the sole support 9 to the flanges 1 and 8, respectively, while the rivets I5 and I6 connect the heel support I2 with the flanges I0 and II.

As shown in Figure 1, the sole support 9 is provided with several openings I'I, while the heel support I2 has similar openings I8. The openings I1 and I8 may be used for connecting the roller skate to the shoe of the wearer.

55 The front portion I9 of the support 6 is provided with a cylinder 24 enclosing a freely ro tatable guide 20 which carries a leather facing 2 I.

As shown in Figure 3, the guide 20 is surrounded by a cylinder 22 which is pressed into the interior 23 of the outer cylindrical casing 24. 5 The guide 20 is provided with a groove 25 carrying a snap ring 26, which is situated over the inner cylinder 22. The guide 20 is rotatable upon a single ball thrust bearing comprising a ball 2l, a part of which is situated within a recess 10 formed in the end portion of the guide 20, while the opposite surface of the ball 2'I fits into a recess formed in the upper inner surface of the chamber 23.

Due to the provision of the guide 20, the Wear- 15 er of the roller skate can turn very easily and rapidly and can describe iigures similar to those which can be described by an ice skater.

In the modification shown in the drawing, the roller skate comprises live pairs of rollers 28 to 20 3'I. Each pair of rollers is mounted upon a separate axle, and the pairs of rollers are disposed one behind the other.

As shown in Figure 2, the support 6 comprises five projections 38 to 42, each of which carries 25 a separate axle for the rollers. The axles 43 to 41 of the rollers are disposed upon the are of a circle to facilitate still further the movements of the user.

Since the construction of each pair of rollers 30 is substantially the same, only one of them will be described in the present specification.

The rollers 34 and 35, which are shown in Figure 4 of the drawing, and which are carried by the axle 46, are disposed symmetrically on both 35 sides of the projection 4I of the central longitudinal blade or support 6.

The roller 35 comprises an outer rim or supporting .member 48 having an outer cylindrical surface 49 and an inner hollow chamber 50. rim 48 is provided with ribs 80 and is mounted upon a ring 5I having a cut-out portion 52 and carrying two washer rings 53 and 54.

The hub of the roller is constituted by two sleeves or annular members 55 and 56 which 451 are screwed upon the axle 46. The sleeve 55 is situated close to the projection 4I and is in engagement with a bearing nut 51.

The sleeve 56 is' in engagement with a bearing nut 58, which is screwed upon one end of the axle 46. The sleeves or rings 55 and y56, along with the adjacent portions of the ring 5I, constitute bearing supports for the balls 59 and 60, which are situated in suitable recesses formed in the 55 The 40,

bearing surfaces of the sleeves 55 and 5B. The balls are covered by ball covers 6| and 62.

As shown in` Figure 4, the roller 34 is of substantially the same construction as the described roller 35, and comprises an outer spherical rim 63 supported upon two ball bearings 64 and 65.

Covers 66 and 61 are carried by the rims 48 and 63, respectively, and are provided with oil holes 68 and.' 69. As shown more clearly in Figure 5, the rim 53 is provided with ribs 1I. The ring 'l2 which is situated within the rim 63 is preferably octagonal in form and ts into a suitably shaped inner opening of the rim G3- Due to the described construction, the user may move exceptionally fast on the roller skates and can turn sharply and describe various figures Without diminishing the speed of movement. Furthermore, the rollers may be used even when they are at a substantially inclined position in relation to the supporting surface, with perfect ease and safety.

It is apparent that the specii'ic illustration shown above has been given by way of illustra-l tion and not by way of limitation, and that 'the structure above described is subject to wide vari-y ation and modification without departing lrom the scope of the invention. All of such variations and modifications are to be included Within the present invention.

What is claimed is:

1. A roller skate, comprising an elongated support, a plurality of axles carried by said support,

a pair of separate rollers carried by each axle, each roller comprising an outer rim member having a spherical bearing surface constituting a continuation of the spherical bearing surface of the other roller carried by the same axle, a ball bearing interposed between said rim member and said axle and comprising an inner ring fitting within said rim member and rotatable therewith, a sleeve mounted upon said axle, and a row of balls situated between said inner ring and said sleeve; said axle having a threaded portion; and a nut screwed upon said threaded portion and engaging said sleeve.

2. A roller skate, comprising an elongated support, a plurality of axles carried by said support, a pair or separate rollers carried by each axle, each roller comprising a rim member which comprises an outer member having a spherical bearing surface and an inner member, said outer and inner members enclosing an inner chamber which is open solely in the direction toward the other roller of the same pair, and ribs extending through said chamber; said axle being threaded, a ball bearing interposed between said rim member and said axle and comprising an inner ring fitting within said rim member and rotatable therewith, a sleeve screwed upon said axle, balls situated between said inner ring and said sleeve, and a ball cover for said balls; and a nut screwed upon said threaded portion and engaging said sleeve.

HENRI PTERMANN. 

